Nature Reserve Guide
Untere Alz, a nature reserve in Upper Bavaria, Germany, is situated along the lower course of the Alz river between Emmerting and its confluence with the Inn river near Marktl. As the largest protected area in the Altötting district, encompassing 749 to 760 hectares, it features diverse landscapes including a significant Alz floodplain with mixed forests and unique permeable gravel areas known as "Brennen." These varied terrains and well-maintained paths make the region suitable for several sports like hiking, touring…
150
Routes
4.4
(408)
Average rating
2572
People visited

4.8
(63)
195
hikers
Easy hike. Easily walkable paths.

4.8
(14)
35
hikers
8.28km
02:09
50m
50m
Moderate hike. Good fitness required. Easily walkable paths.

4.5
(6)
23
hikers
Easy hike. Easily walkable paths.

4.5
(13)
60
hikers
6.81km
01:46
40m
40m
Easy hike. Easily walkable paths.
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4.3
(4)
98
riders
42.5km
01:53
210m
210m
Moderate road ride. Some segments of this route may be unpaved and difficult to ride.

5.0
(2)
40
riders
26.4km
01:10
150m
150m
Moderate road ride. Some segments of this route may be unpaved and difficult to ride.

4.0
(4)
36
riders
25.5km
01:06
120m
120m
Moderate road ride. Some segments of this route may be unpaved and difficult to ride.

5.0
(3)
24
riders
63.4km
02:47
430m
430m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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3.9
(9)
123
riders
12.1km
00:47
50m
50m
Easy bike ride. Mostly paved surfaces.

4.4
(12)
79
riders
35.5km
02:04
150m
150m
Moderate bike ride. Good fitness required. Mostly paved surfaces.

4.7
(6)
60
riders
16.2km
01:00
130m
130m
Easy bike ride. Mostly paved surfaces.

3.0
(2)
64
riders
Easy bike ride. Mostly paved surfaces.
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53
runners
12.5km
01:19
60m
60m
Moderate run. Good fitness required. Mostly paved surfaces.

10
runners
13.8km
01:29
130m
130m
Moderate run. Good fitness required. Mostly paved surfaces.

3.0
(1)
10
runners
10.2km
01:09
180m
180m
Moderate run. Good fitness required. Mostly paved surfaces.

6
runners
10.9km
01:07
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces.
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4.3
(17)
101
riders
60.8km
03:08
340m
340m
Moderate gravel ride. Good fitness required. Mostly paved surfaces.

5.0
(2)
26
riders
64.9km
03:33
480m
480m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.

4.3
(3)
19
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces.

4.6
(13)
83
riders
40.5km
02:09
150m
150m
Moderate gravel ride. Good fitness required. Mostly paved surfaces.
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3.0
(1)
16
riders
29.0km
01:45
160m
160m
Easy mountain bike ride.

4.6
(5)
7
riders
Easy mountain bike ride.

5.0
(2)
4
riders
18.9km
01:19
110m
110m
Easy mountain bike ride.

3.7
(3)
11
riders
12.6km
00:43
90m
90m
Easy mountain bike ride.
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The Untere Alz nature reserve is located in Upper Bavaria, Germany, along the lower course of the Alz river between Emmerting and Marktl. It is the largest protected area in the Altötting district, covering approximately 750 hectares. The reserve features diverse landscapes, including a significant Alz floodplain and unique permeable gravel areas known as "Brennen."
Untere Alz offers a variety of outdoor activities, including Hiking, Touring cycling, Road cycling, Jogging, Gravel biking, and Mountain biking. The reserve provides well-maintained paths suitable for these sports, catering to different skill levels.
Yes, Untere Alz features numerous hiking trails, ranging from easy walks to more moderate routes. A popular option is the Forest Stream in Upper Bavaria – Island in the Brunnbach loop from Unteremmerting, which is approximately 3.2 miles [5.1 km] long. More information can be found in the Hiking in Untere Alz guide.
Untere Alz offers various cycling routes, including options for touring and road cycling. An example is the Schachen Organic Farm Shop – Burghausen Fitness Trail loop from Emmerting, an easy touring cycling route of about 7.8 miles [12.6 km]. Comprehensive details are available in the Cycling in Untere Alz guide.
Yes, mountain biking trails are available in Untere Alz, with several easy routes. The Riverbank on the Untere Alz – Forest Trail Along the Slope loop from Emmerting is an easy route spanning approximately 12.1 miles [19.5 km]. Further information can be found in the MTB Trails in Untere Alz guide.
Untere Alz provides several jogging routes, typically of moderate difficulty. An example is the Altötting Fitness Trail loop from Emmerting, which covers about 7.8 miles [12.5 km]. The Running Trails in Untere Alz guide offers more options.
Untere Alz offers many easy trails suitable for beginners across various sports. For hiking, the Leonberg Church – Bear Cave at Leonberg loop from Innleite bei Marktl mit Dachlwand is an easy 1.9-mile [3.0 km] hike. The Easy hikes in Untere Alz guide provides additional options.
Untere Alz is notable for its significant Alz floodplain, which supports species-rich mixed forests. Unique "Brennen" – highly permeable gravel areas – provide critical habitats for numerous butterfly species. The reserve also features the reactivated Brunnbach stream and artificial ponds, contributing to its diverse ecosystem.
The main attractions in Untere Alz include its diverse natural landscapes, such as the Alz floodplain and the "Brennen" gravel areas. These areas are home to rare flora like Lady's Slipper orchids and a vibrant butterfly population. The reserve itself is considered a natural monument. More details are in the Attractions in Untere Alz guide.
Untere Alz is a popular destination on komoot, with more than 1,700 visitors having recorded activities. The region features over 100 routes across various sports, with an average rating of 4.5 out of 5 stars based on hundreds of reviews.
Komoot offers several guides for Untere Alz, covering various activities and points of interest. These include guides for Hiking, Cycling, Gravel biking, MTB Trails, and Attractions.
The Landratsamt Altötting (District Office of Altötting) is the managing authority for the Untere Alz nature reserve. General inquiries can be directed to them. Their website is www.lra-aoe.de, and a general phone number is +49 8671 502-0.

