The Hohlohseemoor south of the Hohloh summit has been a nature reserve since 1940. Since 2000, the Hohlohsee bei Kaltenbronn Nature Reserve together with the Wildseemoor and surrounding bannwald and schonwald have been part of the Kaltenbronn Nature Reserve and Protected Forest which covers an area of 17.5 km². On the mountain there are parts of the protected area of the Middle Murg Valley (Mittleres Murgtal), CDDA No. 323009; 1940; 76.1 km²); the reserves being excluded from it. The nature reserve is part of the fauna-flora habitat region of Kaltenbronner Enzhöhen (FFH-No. 7316-341; 10.4244 km²). In addition there are elements of the Northern Black Forest bird reserve (Vogelschutzgebiet Nordschwarzwald, VSG No. 7415-441; 360.4511 km²) on the mountain.